CVE-2026-27144
Description
A flaw was found in the cmd/compile package in the Go standard library. A no-op interface conversion prevented the compiler from correctly identifying non-overlapping memory moves. As a result, the compiler allows unsafe memory move operations to occur at runtime, potentially causing data corruption, memory corruption or unexpected application behavior.
Statement
This issue is only exploitable in applications that contain a memory move or copy operation that is subject to a no-op (no-operation) interface conversion. Furthermore, the source and destination memory addresses involved in the move or copy must overlap and an attacker must be able to supply an input that triggers this specific operation. Due to these reasons, this flaw has been rated with a moderate severity.
Mitigation
To mitigate this issue, review code that performs memory copies or struct assignments. If data is being passed through an interface (such as 'any' or 'interface{}') just before a move operation, refactor the code to use concrete types or explicit pointers instead.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.1 | 7.1 | 7.1 |
| Attack Vector | Network | Local | Local |
| Attack Complexity | High | Low | Low |
| Privileges Required | None | Low | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | None | None |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Understanding the Weakness (CWE)
Other
Technical Impact: Quality Degradation; Varies by Context
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